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DIGITAL - Images - BIL (DISIMP)

3 record(s)

 

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draft

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    Normalised Difference Vegetation Index (NDVI) images from Feb. 1991 have been compiled by processing and compositing AVHRR data from the Alice Springs receiving station to a nominal 1km resolution. The NDVI equation produces values in the range of -1.0 to 1.0, where increasing positive values indicate increasing green vegetation and negative values indicate nonvegetated surface features such as water, barren land, ice, and snow or clouds. Each image is compiled from AVHRR data collected over a fortnight.

  • Categories  

    Sea surface temperature data, in DISIMP images, from NOAA Advanced Very High Resolution Radiometer (AVHRR) data received at Australian Stations including ACRES (Alice Springs), WASTAC (Perth), Australian Institute of Marine Science (Townsville), CSIRO Marine Laboratories (Hobart), CSIRO Atmospheric Research (Melbourne) and Bureau of Meteorology (Darwin). Potentially overlapping data from each station was consolidated ("stitched") into a single, Australia-wide image per satellite overpass by the CSIRO/Earth Observation Centre, from various NOAA satellites with both day and night passes. Data spans from October 1993 to June 2003. SST is calculated using the NLSST (non-linear SST) algorithm or the split window (McMillin) algorithm. The images cover the Australian continent and surrounding oceans. The data are contained on magnetic tape in Hobart.

  • Categories  

    Sea surface temperature data, in "Serov" DISIMP images, from Advanced High Resolution Radiometer (AVHRR) data received at the Hobart station. The AVHRR is mounted on the NOAA polar-orbiting satellites. Data starts from July 1991. The images cover the "BIGTAS" area, which is bounded by Serov coordinates 14801,8922,15801,9922. The data are contained on CDROMs in Hobart.